![]() |
| If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|||||||
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
|
There is a calculator that can help you determine when civil twilight
is based on the date and your location. http://aa.usno.navy.mil/data/docs/RS_OneDay.html |
| Thread Tools | |
| Display Modes | |
|
|